Constructivist is common term used for facilitation. Taking the constructivist approach is the idea that a teacher scaffold, circle the classroom to ensure that students are working as expected. The teacher also provide direction to students to keep them on task. The class is more student centered that teacher centered, meaning student take responsibility for own learning. Small group learning is also another means where peer sharing reinforces learning.
Some skeptics believe that the constructivist approach consumes time waiting for students to make discovery on their own, while a teacher direct involvement reduces the amount of trial and errors that student will make before successfully arriving with answers.